一、
SKR Motherboard Introduction
BIGTREETECH SKR-mini-V1.1 motherboard is a very cost-effective
3D printer motherboard, designed by Shenzhen BIQU Technology Co.
Ltd. 3D printing team, especially suitable for small printers.
1. SKR motherboard features:
1) ARM Cortex-M3 series STM32F103RCT6 chip with 32-bit CPU
72MHz;
2) Equipped with highly modular open source firmware Marlin2.0,
convenient for users DIY and secondary development, exempt from
the worries of the core code;
3) Using powerful development tools, Visual Studio Code integrated
development environment: support online debugging, more helpful
for product development and performance optimization, using C
language development, low development threshold;
4) PCB board wiring is rigorous and beautiful, and specializing in
heat dissipation optimization;
5) Using a dedicated power chip to support 12-24V power input;
6) Accept 24V input, reduce the hot bed current to 1/4 at the same
power, effectively solve the hot bed MOS tube heating problem;
7) Support 2.8-inch, 3.5-inch color touch screen and LCD2004
screen, reserved LCD12864 screen interface, users are welcome to
discuss firmware debugging on LCD12864 screen;
8) The system supports simplified Chinese, English and other
languages, which can be switched by itself;
9) Upgrade the firmware by SD card, which is easy and convenient
to operate;
10) Use firmware to set the driving current mode, avoid manual
adjustment of current and cause burnout drive. Convenient, safe,
reliable;
11) Support functions such as printing after power failure, broken
material detection, and power off after ending;
2. SKR motherboard parameters:
Appearance size: 90*70mm
Installation size: 80mm*60mm
Microprocessor: ARM Cortex-M3 CPU
Power input: DC12V-DC24V 5A-12A
Motor Driver: Supports TMC2208, TMC2130, LV8729, DRV8825,
A4988, ST820 and more
Motor drive interface: X, Y, Z, E0, 4 channel (series double Z axis),
up to 256 subdivision
Temperature sensor interface: TH0, TB, 2 channel 100K NTC
(thermal resistance)
Display: 2.8-inch TFT, 3.5-inch TFT, LCD2004
